Home / 20,094.96-27,731.22-11,142.30

Finding the Fourth Proportional to 20,094.96, 27,731.22 and 11,142.30

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Solution

The fourth proportional to 20,094.96, 27,731.22 and 11,142.30 is: 15,376.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,094.96 : 27,731.22 = 11,142.30 : x
  2. Step 2: Convert to fraction form
    20,094.96/27,731.22 = 11,142.30/x
  3. Step 3: Cross multiply
    20,094.96x = 27,731.22 × 11,142.30
  4. Step 4: Simplify right side
    20,094.96x = 308,989,572.61
  5. Step 5: Solve for x
    x = 308,989,572.61/20,094.96
  6. Step 6: Final answer
    x = 15,376.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.